The invention relates to a method for diagnosing overheating of a system for cooling an electrical circuit in a motor vehicle comprising at least one electrical machine for propelling the vehicle and at least one electrical element associated with the electrical machine to be cooled. The method comprises a step of determining a first lower threshold equal to an external temperature in an environment of the vehicle and a second threshold (MIN) equal to the minimum between a third configurable threshold (411) and the highest temperature (MAX) of the temperatures (406 to 409) of said at least one electrical machine and an electrical element, a step of comparing the recorded temperature (410) of the fluid to the first and second thresholds (MIN). When the recorded temperature (410) is not included between the first and second thresholds (MIN), a step of diagnosing the cooling system as being overheated is performed.
PROCEDE DE DIAGNOSTIC D'UN SYSTEME DE REFROIDISSEMENT D'UN CIRCUIT ELECTRIQUE DE PROPULSION
METHOD FOR DIAGNOSING A SYSTEM FOR COOLING AN ELECTRICAL PROPULSION CIRCUIT
VERFAHREN ZUR DIAGNOSE EINES SYSTEMS ZUR KÜHLUNG EINER ELEKTRISCHEN ANTRIEBSSCHALTUNG
2022-12-07
Patent
Electronic Resource
French
IPC: | F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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